Question

Aman found it easy to drag a mat. However when his sister sat on the same mat he found that it was difficult to drag the mat. what could be the reason for this? ​

Answer 1

Answer:

It was due to friction

Explanation:

Friction is caused by the inter locking of the irregularities in the two surfaces. When two surfaces are pressed harder together, the force of friction increases. Therefore, it is easy to drag a mat when no body is sitting on it rather than when a person is sitting on it.

Answer 2

Answer:

because the sisters weight is also added to the weight of mat . Hence it would require greater force than before.

that's why it was difficult to drag the mat when his sister sat on it.

hope this helps